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|
package dhcp6opts
import (
"bytes"
"io"
"net"
"testing"
"time"
"github.com/mdlayher/dhcp6"
)
// TestNewIAAddr verifies that NewIAAddr creates a proper IAAddr value or returns
// a correct error for input values.
func TestNewIAAddr(t *testing.T) {
var tests = []struct {
desc string
ip net.IP
preferred time.Duration
valid time.Duration
options dhcp6.Options
iaaddr *IAAddr
err error
}{
{
desc: "all zero values",
iaaddr: &IAAddr{},
},
{
desc: "IPv4 address",
ip: net.IP([]byte{192, 168, 1, 1}),
err: ErrInvalidIP,
},
{
desc: "preferred greater than valid lifetime",
ip: net.IPv6loopback,
preferred: 2 * time.Second,
valid: 1 * time.Second,
err: ErrInvalidLifetimes,
},
{
desc: "IPv6 localhost, 1s preferred, 2s valid, no options",
ip: net.IPv6loopback,
preferred: 1 * time.Second,
valid: 2 * time.Second,
iaaddr: &IAAddr{
IP: net.IPv6loopback,
PreferredLifetime: 1 * time.Second,
ValidLifetime: 2 * time.Second,
},
},
{
desc: "IPv6 localhost, 1s preferred, 2s valid, option client ID [0 1]",
ip: net.IPv6loopback,
preferred: 1 * time.Second,
valid: 2 * time.Second,
options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
iaaddr: &IAAddr{
IP: net.IPv6loopback,
PreferredLifetime: 1 * time.Second,
ValidLifetime: 2 * time.Second,
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iaaddr, err := NewIAAddr(tt.ip, tt.preferred, tt.valid, tt.options)
if err != nil {
if want, got := tt.err, err; want != got {
t.Fatalf("[%02d] test %q, unexpected error for NewIAAddr: %v != %v",
i, tt.desc, want, got)
}
continue
}
want, err := tt.iaaddr.MarshalBinary()
if err != nil {
t.Fatal(err)
}
got, err := iaaddr.MarshalBinary()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(want, got) {
t.Fatalf("[%02d] test %q, unexpected IAAddr bytes:\n- want: %v\n- got: %v",
i, tt.desc, want, got)
}
}
}
// TestIAAddrUnmarshalBinary verifies that IAAddr.UnmarshalBinary produces a
// correct IAAddr value or error for an input buffer.
func TestIAAddrUnmarshalBinary(t *testing.T) {
var tests = []struct {
desc string
buf []byte
iaaddr *IAAddr
err error
}{
{
desc: "one byte IAAddr",
buf: []byte{0},
err: io.ErrUnexpectedEOF,
},
{
desc: "23 bytes IAAddr",
buf: bytes.Repeat([]byte{0}, 23),
err: io.ErrUnexpectedEOF,
},
{
desc: "preferred greater than valid lifetime",
buf: append(net.IPv6zero, []byte{
0, 0, 0, 2,
0, 0, 0, 1,
}...),
err: ErrInvalidLifetimes,
},
{
desc: "invalid options (length mismatch)",
buf: append(net.IPv6zero, []byte{
0, 0, 0, 1,
0, 0, 0, 2,
0, 1, 0, 1,
}...),
err: dhcp6.ErrInvalidOptions,
},
{
desc: "IPv6 loopback, 1s preferred, 2s valid, no options",
buf: append(net.IPv6loopback, []byte{
0, 0, 0, 1,
0, 0, 0, 2,
}...),
iaaddr: &IAAddr{
IP: net.IPv6loopback,
PreferredLifetime: 1 * time.Second,
ValidLifetime: 2 * time.Second,
},
},
{
desc: "IPv6 loopback, 1s preferred, 2s valid, option client ID [0 1]",
buf: append(net.IPv6loopback, []byte{
0, 0, 0, 1,
0, 0, 0, 2,
0, 1, 0, 2, 0, 1,
}...),
iaaddr: &IAAddr{
IP: net.IPv6loopback,
PreferredLifetime: 1 * time.Second,
ValidLifetime: 2 * time.Second,
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iaaddr := new(IAAddr)
if err := iaaddr.UnmarshalBinary(tt.buf); err != nil {
if want, got := tt.err, err; want != got {
t.Fatalf("[%02d] test %q, unexpected error for parseIAAddr: %v != %v",
i, tt.desc, want, got)
}
continue
}
want, err := tt.iaaddr.MarshalBinary()
if err != nil {
t.Fatal(err)
}
got, err := iaaddr.MarshalBinary()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(want, got) {
t.Fatalf("[%02d] test %q, unexpected IAAddr bytes for parseIAAddr:\n- want: %v\n- got: %v",
i, tt.desc, want, got)
}
for _, v := range iaaddr.Options {
for ii := range v {
if want, got := cap(v[ii]), cap(v[ii]); want != got {
t.Fatalf("[%02d] test %q, unexpected capacity option data:\n- want: %v\n- got: %v",
i, tt.desc, want, got)
}
}
}
}
}
|
